Name: app-builder
Rating: 0.684 (1 reviews)
Author: sickn33

app-builder

Main application building orchestrator. Creates full-stack applications from natural language requests. Determines project type, selects tech stack, coordinates agents.

1.55x

Quality

52%

Does it follow best practices?

Impact

98%

1.55x

Average score across 3 eval scenarios

Securityby

Passed

No known issues

Optimize this skill with Tessl

npx tessl skill review --optimize ./skills/app-builder/SKILL.md

Evaluation results

100%

54%

Project Scaffold: Internal Operations Dashboard

Default 2025 tech stack and Next.js project structure

Criteria

Without context

With context

Next.js 16

100%

TypeScript 5.7+

100%

Tailwind CSS v4

100%

Auth.js v5 or Clerk

100%

PostgreSQL ORM

100%

Zod or TypeBox validation

100%

features/ directory

100%

server/ directory

100%

shared/ directory

100%

@/features/* alias

100%

@/server/* alias

100%

@/shared/* alias

100%

Without context: $0.3077 · 1m 18s · 12 turns · 61 in / 5,168 out tokens

With context: $0.4932 · 1m 44s · 21 turns · 617 in / 6,302 out tokens

95%

35%

REST API: Property Listings Service

Express API middleware order and response format

Criteria

Without context

With context

helmet first

100%

cors after helmet

100%

morgan after cors

50%

100%

body parsing before routes

100%

error handler last

100%

Success response format

100%

Error response format

50%

routes/ directory

100%

controllers/ directory

100%

services/ layer

100%

middleware/ files

50%

100%

Zod validation

100%

Without context: $0.8104 · 2m 55s · 34 turns · 33 in / 10,807 out tokens

With context: $1.0586 · 3m 25s · 40 turns · 1,582 in / 12,459 out tokens

100%

16%

CLI Tool: Microservice Project Generator

CLI tool conventions and interactive/non-interactive modes

Criteria

Without context

With context

Commander.js

100%

Inquirer.js

100%

chalk for output

100%

ora for spinners

100%

cosmiconfig for config

100%

Non-interactive flag

100%

Interactive branch

100%

Exit code 0 on success

100%

Exit code 1 on error

100%

bin entry in package.json

100%

Without context: $0.6725 · 2m 13s · 29 turns · 30 in / 8,388 out tokens

With context: $1.1568 · 3m 42s · 44 turns · 592 in / 13,609 out tokens

Repository: sickn33/antigravity-awesome-skills
Commit: 9c177eb

Evaluated: 19 days ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Project Scaffold: Internal Operations Dashboard REST API: Property Listings Service CLI Tool: Microservice Project Generator

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